Design and Analysis of a PV-Based Cascaded H-Bridge Seven-Level Inverter Parul Gaur, Yajvender Pal Verma, and Preeti Singh Abstract With the advancement of technology, multilevel inverters are preferred over the two-level inverters due to its numerous advantages such as minimized total harmonic distortion, better sinusoidal output voltage and lesser electromagnetic inter- ferences. High-power industrial applications also make use of multilevel inverters for obtaining better output. Two-level inverters are completely obsolete nowadays. Keeping in view this, the focus is on to design, simulate and analyse a seven-level inverter in this research work. Also, renewable energy sources such as solar, biomass, hydro and wind can be naturally replenished during a life cycle. Uses of these renew- able energy sources are more beneficial. Here, in this research work, photovoltaic source is being used as the input to the cascaded H-bridge seven-level inverter rather than direct current source. The designed seven-level inverter results in lesser har- monics as well as lesser total harmonic distortion and is suitable for induction motor drive applications. Keywords Multilevel inverter (MLI) · Cascaded H-bridge (CHB) · Renewable energy sources (RESs) · Photovoltaic (PV) · Total harmonic distortion (THD) · Harmonics 1 Introduction Nowadays, multilevel inverters (MLIs) are emerging as strong power electronics devices in the high-power industrial world as well as for commercial purposes. MLIs have completely replaced the conventional two-level inverters, which was initially used in the industries [1]. Conventional two-level inverters result in lesser sinusoidal P. Gaur (B ) · Y. P. Verma · P. Singh UIET, PU, Chandigarh, India e-mail: parulgaur@pu.ac.in Y. P. Verma e-mail: yp_verma@pu.ac.in P. Singh e-mail: preeti_singh@pu.ac.in © Springer Nature Singapore Pte Ltd. 2020 G. Pradhan et al. (eds.), Advances in Electrical Control and Signal Systems, Lecture Notes in Electrical Engineering 665, https://doi.org/10.1007/978-981-15-5262-5_40 541